//go:build linux

// This file is part of MinIO DirectPV
// Copyright (c) 2021, 2022 MinIO, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package drive

import "syscall"

func getFreeCapacity(path string) (uint64, error) {
	stat := &syscall.Statfs_t{}
	if err := syscall.Statfs(path, stat); err != nil {
		return 0, err
	}
	return stat.Bavail * uint64(stat.Frsize), nil
}
